.black-button {
  border: var(--button-border);
  width: var(--button-width);
  padding: var(--button-padding);
  background-color: black;
  color: white;
}

.black-button-no-var {
  border: 2px solid green;
  width: 50%;
  padding: 12px;
  background-color: black;
  color: white;
}

.spacing {
  margin-bottom: 40px;
}
